Coherent light scattering by blue feather barbs

  title={Coherent light scattering by blue feather barbs},
  author={R. Prum and R. Torres and S. Williamson and J. Dyck},
  • R. Prum, R. Torres, +1 author J. Dyck
  • Published 1998
  • Materials Science
  • Nature
  • The structural colours of avian feather barbs are created by the scattering of light from the spongy matrix of keratin and air in the medullary layer of the barbs,. However, the precise physical mechanism for the production of these colours is still controversial,,,. Here we use a two-dimensional (2D) Fourier analysis of the spatial variation in refractive index of the blue feather barbs of the plum-throated cotinga (Cotinga maynana, Cotingidae) to show that the colour is produced by… CONTINUE READING
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